Upload
others
View
0
Download
0
Embed Size (px)
Citation preview
April, 2006
School of Business and Public Management
Institute of Brazilian Business and Public Management Issues – IBI
XX Minerva Program
Spring 2006
The Free Consumers in the Brazilian Electrical Energy Sector
Author:
André Pepitone da Nóbrega
The Free Consumers in the Brazilian Electrical Energy Sector 2
André Pepitone da Nóbrega
TABLE OF CONTENTS
SECTION ONE 3
1. INTRODUCTION 3 1.1. PAPER STRUCTURE 7
SECTION TWO 9
2. BRAZILIAN ELECTRIC ENERGY INDUSTRY OVERVIEW 9
SECTION THREE 16
3. REGULATORY ISSUES 16 3.1. FEDERAL LAW N. 9,074 - JULY 7, 1995 16 3.2. FEDERAL LAW N. 9,427 - DECEMBER 26, 1996 17 3.3. FEDERAL LAW N. 9,648 - MAY 28, 1998 17 3.4. FEDERAL LAW N. 10,848 - MARCH 15, 2004 18
SECTION FOUR 21
4. RETAIL COMPETITION OR CONSUMER CHOICE 21
SECTION FIVE 25
5. FREE CONSUMERS IN THE BRAZILIAN MARKET 25 5.1. BARRIERS THAT CONSUMERS FACE TO GET INTO RETAIL COMPETITION 27 5.2. FORCES PUSHING CONSUMERS TOWARD RETAIL COMPETITION 28 5.3. ADVANTAGES AND RISKS 31 5.4. ADHESION TO RETAIL CO MPETITION 33
SECTION SIX 37
6. CONSIDERATIONS 37
SECTION SEVEN 40
7. REFERENCES 40
The Free Consumers in the Brazilian Electrical Energy Sector 3
André Pepitone da Nóbrega
SECTION ONE
1. INTRODUCTION
From the early 90’s, the Brazilian State, then considered a great
entrepreneur altered its point of view and action, and started to promote the
socioeconomic development of the country, directing its actions toward the
social area for a progressive enlargement of spaces in search of bigger private
participation in the infrastructure sector. The State decided to not perform
activities that the Private Sector was fully capable of undertaking. Instead, it
started focusing its efforts on areas such as education, health care, law
enforcement, and regulation.
In the Brazilian Electric Power Sector, the need of changes was
felt since the 80’s. The model of the Electric Sector, then in force, revealed
growing fragility. However, the Utopia of the State-Owned development still had
some defenders. Years later, suffocated by debt and fiscal crises, combined
with extraordinarily weak performance, the Brazilian State began to feel the
weight of its limited capacity to accomplish investments in the infrastructure
sector.
It became necessary to reform the Electric Sector in order to
create conditions to attract private investments and to guarantee the expansion
of the offer of energy and the modernization of the Sector.
The institutional reform of the Electric Sector started in 1993,
when Federal Law n. 8,631 was approved creating conditions for the financial
sanitation of the Sector. This law eliminated the geographic equalization of
tariffs and the 10 per cent minimum return on assets. The new formula for
establishing tariffs was based on the cost structure of the utilities, and was
designed to reflect the companies’ cash flow needs rather than an arbitrary
target for return on assets.
The Free Consumers in the Brazilian Electrical Energy Sector 4
André Pepitone da Nóbrega
In 1995, following the global wave of infrastructure privatization
and liberalization, the Brazilian Electric Sector went through a trial of structural
reform, implementing typical measures of stimulus to promote competition, as
unbundled the vertically integrated state owned electric utility’s, separating
transmition, distribution, and system control from competitive generation and
wholesale and retail marketing, adopting privatization programs, implementing
a credible regulation that fosters efficient behavior by market participants,
creating a well-designed wholesale markets with enough independent suppliers
to facilitate competition, and allowed retail competition for industrial consumers.
The figure of the free consumer just appears in the Brazilian
market as being able to buy energy from the supplier offering the best prices
and conditions. However, only in 1999, the big industries exercised the right to
buy electric energy, basic input of its activities, from sector agents capable of
offering them the best prices.
For instance, the big moment was predicted to occur in 2005,
when Federal Law n. 9,074, enacted in July 1995, allowed all Brazilians
consumers to choose their power supplier. This means that even the small
consumers, such as households and small businesses, would be able to buy
electricity directly from generators on a competitive, customised basis.
In practice, in those days, the Brazilian model for the Electric
Sector could be characterized as being a mixed model, with competition in the
wholesale area, where multiple distributors buy electricity from competing
generators, using the transmission network to deliver it to their service areas
under open access arrangements, and competition in the retail area where
large consumers have access to competing generators, directly or through a
retailer of the ir choice.
That broad reform was subsidized by studies by an American
Accounting and Consulting firm: Coopers & Lybrand that was hired on a
competitive bid to devise a new model for the Electric Power Sector in Brazil.
That company had as slogan: "competition where possible, regulation where
The Free Consumers in the Brazilian Electrical Energy Sector 5
André Pepitone da Nóbrega
necessary."
Coopers & Lybrand presented its report in mid-1997. Its main
recommendations, were:
(i) the creation of the wholesale electricity market;
(ii) the establishment of “initial contracts” to provide a transition
phase into the competitive Power Market;
(iii) the unbundling of the transmission assets and the creation of
an Independent System Operator (ONS) to manage the interconnected system;
and
(iv) the organization of planning and financial activities in this new
setting.
In 2002, with the victory in the presidential election of the
opposition party (i.e. left party), in which the main critics of the in force Electrical
Model were found, gained the political support to reformulate the basic
directives of the Brazilian Electric Sector. This recently-elected Government
released in 2003 the draft guidelines of a new regulatory framework for the
Electric Energy Sector. The draft proposed substantial changes to the set of
rules implemented by ex-President Fernando Henrique Cardoso’s Government.
In March 11, 2004, Federal Laws n.. 10,847 and n. 10,848 were approved
establishing a new framework for the Brazilian Electricity Sector. These Laws
created a new stateowned company for research and planning and redefine the
roles of the Government and the Regulatory Agencies in the Energy Industry.
Federal Law n. 10,848 established a new electricity trading
system. The new Câmara de Comercialização de Energia Elétrica (CCEE -
Electric Energy Commercialization Chamber) was created to substitute the
Mercado Atacadista de Energia (MAE), enhancing its feasibility.
The Law also established two markets for electricity trading: a
regulated (Regulated Contracting Environment – ACR) and a free one (Free
Contracting Environment – ACL). In the regulated market, the distribution
companies must have under assured capacity contracts 100 percent of capacity
needs, with a maximum error of 5 percent. The distribution companies have to
The Free Consumers in the Brazilian Electrical Energy Sector 6
André Pepitone da Nóbrega
purchase energy in a Pool. The price at which electricity will be traded through
the Pool is an average of all long-term contracted prices and will be the same
for all distribution companies. All current electricity procurement contracts
remain in place; therefore, each distribution company will have different
portfolios of contracts. In the previous system, the distribution companies had to
buy no-contracted energy in the free market. In a shortage situation, the price of
energy would increase, causing higher distribution costs.
The main goals of the recent implanted model focus on:
(i) Introduce efficient contracting mechanisms for captive
consumers;
(ii) Ensure reliable supply for all consumers (Government planning
& environmental license);
(iii) Universal access, with special tariffs for low-income
consumers; and
(iv) End of dealing between generators and distributors, including
self-dealing; generators now bid to meet de aggregated demand of a pool of
distributors.
All these goals do not differ significantly from those of the previous
model. However, the mechanisms proposed to reach such objectives are quite
different. The main changes occurred in the mechanisms of contracting energy
to the Captive Consumers, whereby the Government seeked to promote
affordable tariffs for them and reduce the investment risks of the privates
companies in order to permit the expansion of the generator park guaranteeing
the supply of electricity and in the strengthening of the function of planning of
the State.
In the Retail Sector the conditions of contracting remained
practically unaffected. The initial expectation to gradually increase the size of
the Free Market through reduction of the limits of demand level by introducing
the categorie of small consumers such as households and small businesses,
expected to happen in 2005 by the enactment of Federal Law n. 9,074
suffered stoppage, since the reduction of the demand level did not occur in
The Free Consumers in the Brazilian Electrical Energy Sector 7
André Pepitone da Nóbrega
order to make it possible for the small consumers to become free. As noted,
only those consumers of medium demand level still can act in the free market.
1.1. Paper Structure
After decades of structural immobility in the Electricity Industry,
Governments are allowing marked forces to play a role in generation and
supply. Structural change accelerated over the past decade and is now a
global phenomenon. Alrthoug only a handful of countries have achieved
substantive market liberalization, almost all have felt considerable domestic and
international pressure to reform their electricity systems (Kessides 1997).
Thinking to promote a competitive environment, in order to allow
Consumers to obtain energy with low prices and investors to receive a just
return on their assets, the Brazilian Government introduce in 1995 competition
in the retail segments of the industry. This study therefore has three main
objectives:
? Demonstrate how was the introduction of competition in the
Retail Segment of the Energy Industry.
? Dicscusses advantages and inherent risks of the custumers
in retail competition.
? Offer a summary of the agents participacion in the retail
compettion marke t.
With the purpose of presenting the political-institutional context in
which the present study is inserted, the Section One, as already was exposed,
approaches the evolution of the Brazilian Power Industry, emphasizing the
characteristics of the last two models implanted in the Brazilian Electric Energy
Industry, with focus for the structure of Retail Energy Market.
Section Two relate the main technical characteristics of the
Brazilian Electric Energy Industry, with comments about some economical
characteristics. Section Three presents the regulatory landmark emphasizing
the characteristics of the Free Consumer.
The Free Consumers in the Brazilian Electrical Energy Sector 8
André Pepitone da Nóbrega
After that introductory part, Section Four introduces the features of
a General Model for retail competition with the objective of demonstrating some
conceptual aspects. Finally, Section Five gives some considerations of the
introduced competition in the retail segments of the Energy Industry in Brazil.
The Free Consumers in the Brazilian Electrical Energy Sector 9
André Pepitone da Nóbrega
SECTION TWO
2. BRAZILIAN ELECTRIC ENERGY INDUSTRY OVERVIEW
Brazil occupies approximately an area of 8,5 million square
kilometers (the size of continental U.S. plus half of Alaska) and has a population
of 181 million inhabitants. In the year 2004 the country had an economically
active population of 93 million inhabitants, with a yearly per capita income of
nearly US$ 3,326 and GDP of US$ 604 billion approximately1.
Brazil has a modern Electricity Industry. The Country built one of
the largest transmission networks in the world, with long distances between
power stations and consumers, and the need for back-up circuits to ensure
alternative supply routes and optimal supply in regional balances. It has a
generator park with strong predominance of hydroelectric power plants, with
big reservoirs characterised by multi-annual regularization, and distributed over
several hydro basins, and also at peak times has a thermal generation playing a
complementary role within the system.
To minimize operational costs, the Electricity System is centrally
dispatched. All Hydro Plants are dispatched as a "portfolio", with "wetter" basins
generating additional energy to compensate for "drier" ones. In favorable
hydrological years, the Hydropower Plants are able to supply the electricity
demand without load support from conventional thermal power plants. For
many years, the thermal power plants remain idle, unless they declare “must
run” (inflexible load).
The Country has almost 2.000 power plants in operation, totaling
92.856 MW of installed capacity2. The electric power supplied to the Brazilian
1 Source: IBGE – Obtained at http:// www.ibge.gov.br. in March 2006. 2 Source: ANEEL – Obtained at http://www.aneel.gov.br /15.htm in January 2006
The Free Consumers in the Brazilian Electrical Energy Sector 10
André Pepitone da Nóbrega
market in 2005 totaled 414.6 TWh3, corresponding to 47,328 MW average or
55% of South America consumption. 76.5% of the Brazilian installed capacity
was supplied by Hydro Power Plants with an installed capacity of 71 GW. The
Power Plants in operation are distributed as follows:
2,007 MW 2.2%
19,798 MW 21.3%
71,060 MW 76.5%
Hydroelectric
Thermal
Nuclear
Figure 1 - Generation Capacity in Brazil by Source (MW) – Jan 2006 Source: ANEEL
As observed, Brazil is hydro -dominated, 83% of its total supply of
energy comes from Hydro Power Plants. Up to now, Brazil has developed only
24% of the Country Hydroelectric Power, while France has developed 97%,
Germany 70% and the USA 68% . There is still an enormous untapped
potential for hydroelectricity in the Country, mostly in the North, that could be
added to the existing supply to increase the total installed capacity.
3 Source:CCEE
The Free Consumers in the Brazilian Electrical Energy Sector 11
André Pepitone da Nóbrega
100
83
64 61 6055
4537
21 18 1611 6 4 1
24
010
2030
40
5060
70
8090
100
France
Germany Jap
an
Norway USA
Switzla
nd Italy
Canada
BRAZILInd
ia
Colombia Chin
aRuss
iaPe
ru
Indon
esia
Congo
Figure 2 - Percentage of potential hydroelectric in operation Source: ANEEL
To assist the growth of the energy demand rate, besides the
hydroeletrics, new options of generation such as natural gas power plants are
being implemented. It is expected an large growth of the renewable local
sources of energy that is needing to be explored. It is worth stressing that
public and private agents co-exist in the Electric Sector and have developed
partnerships mostly in generation of electricity, 15% is under private control.
The transmission, high voltage lines, has reached in December
2005 an extension of 84,512 km 4, able to transfer huge power blocks among
regions. The participation of private agents in this activity, still in the fase of
implementation with the execution of the auctions program to transmission
lines. As of now, 15 of the 26 exi sting companies are private ones.
Due to the territorial extension of the Country and to the presence
of relevant transmission constraints, the Brazilian Electric System is divided in
four sub-markets corresponding to the areas of the interlinked systems:
1 - North
2 - Northeast
3 - Southeast/Centro-west
4 - South.
4 Source: ANEEL
The Free Consumers in the Brazilian Electrical Energy Sector 12
André Pepitone da Nóbrega
Each sub-market is considered as an independent market, subject
to its own SPOT Price. Such situation causes an exposure to risk due to
differences of prices. In this context, the exposure to the resulting risk of the
difference of prices between the sub-markets, provoked by restraints of
transmission between them, complicates the competitiveness between
generation agents that act between those four sub-market.
Figure 3 - Brazilian electric system - Sub-markets
The Distribution Segment is made through 64 dealerships of
public service and includes the whole territorial extension. About 80% of the
Segment is under private administration, so much for national groups and
foreign conglomerate, especially Americans and Spanish. The private
companies of distribution supply 4.756 municipal districts in twenty states.
The consuming market with 56,3 million of residential consumers5
5 Source: ELETROBRAS – Projeção do potencial de consumidores de eletricidade da classe redidencial – Ciclo 2005 - Obtained at http://www.eletrobras.com in November 2005
The Free Consumers in the Brazilian Electrical Energy Sector 13
André Pepitone da Nóbrega
units is concentrated in the more developed regions of the South and
Southeast. In the North Region, the isolated systems predominate assisted by
small central generating, mostly old oil diesel plants.
53.03%
18.22%
5.48%
17.13%
6.15%
SouthEast Region
Sout Region
North Region
NorthEast Region
Center-West
Figure 4 – Participation of the Demand in the Areas of the Brazil Source: ELETROBRAS – Projeção do potencial de consumidores de eletricidade da classe redidencial – Ciclo 2005 - Obtained at http://www.eletrobras.com in November 2005
Along the last two decades, the Electric Power consumption
presented indices of expansion much bigger than the GPD, caused by high
population growth in urban areas, the effort of universalization activity and the
modernization of the Country economy, which shows the youth of the Brazilian
Electric Sector. The exception occurred in 2001, an atypical year, due to the
energy crisis that the country lived, where consumption fell in all regions, in a
differentiated way.
The Free Consumers in the Brazilian Electrical Energy Sector 14
André Pepitone da Nóbrega
Table 1 - Relation between Growth of GDP and of the Ele ctric energy consumption 1994 to 2008
Year PIB
(Growth %)
Growth of the consumption of Electric
Energy (%) 1994 5.85 3.58 1995 4.22 6.01 1996 2.66 4.86 1997 3.27 6.12 1998 0.13 4.19 1999 0.81 2.5 2000 4.36 4.43 2001 1.42 -7.9 2002 1.9 3.2 2003 0.5 3.8 2004* 3.6 4.5 2005* 3.6 5.4 2006* 3.9 4.5 2007* 4.5 4.9 2008* 4.4 6.3
Source: IBGE (www.ibge.gov.br), * Source: Analytical report Eletrobrás (2003) e ONS (2004)
In Brazil, the Industrial Sector is the largest consumer of the
Electric Power with 38% of total consumption. The Residential use follows,
with a consumption of 28% and the Commercial use of 18%. The remaining
17% is distributed among Rural Sector, public illumination, the Government
organs and other, as shown in Figure 5. Reference is made to year 2004.
Figure 5 -Electric Energy Consumption 2004 Source: ANEEL
28%
38%
17%
18%
Residential
Industrial
Commercial
Others
The Free Consumers in the Brazilian Electrical Energy Sector 15
André Pepitone da Nóbrega
0
50,000
100,000
150,000
200,000
250,000
300,000
350,000
1999 2000 2001 2002 2003 2004
Year
Consu
mptio
n (G
Wh)
.
Residential
Industrial
Commercial
Others
Total
Figure 6 - Profile of the Electric Energy consumption in Brazil Source: ANEEL
The classes of Commercial and Residential consumption obtained
expressive growth in participation, while the Industrial Segment did not
participate in this growth, mainly because of the use of more efficient
technologies in the final use of the electricity, ally to the consumption
rationalization measures place in practice specially in the year of 2001.
The Free Consumers in the Brazilian Electrical Energy Sector 16
André Pepitone da Nóbrega
SECTION THREE 3. REGULATORY ISSUES
As noted in the previous Sections and will be able to perceive with
the evolution of the legal mark, the effort of the Brazilian State to introduce
competition in the Retail Segment of the Energy Industry. The freedom of
choice for Consumers is being implemented progressively. In a first phase, only
larger consumers are permitted to choose their power providers.
3.1. Federal Law n. 9,074 - July 7, 1995
This Law brought a series of structural changes for the Electric
Sector, established rules for Electric Power Concessionaries, recognized the
role of the Independent Power Producer (IPP), freed Large-Scale Consumers
from the commercial monopoly of the utility and guaranteed access to the
transmission and distribution systems, with the clear objective of establishing a
competitive atmosphere, whereby the price is the instrument of the agents'
orientation.
In introducing the concept of the Independent Power Producer,
the Government intended that generation and commercialization of electric
power passed to be performed by a dynamic, agile and especially competitive
economic Agent, producing and trading energy on his own risk and account,
with prices not subjects to tariffs defined by the Grantor Authority.
By the same token, the opening of the Consumers' possibility,
under certain conditions, to exercise their options of free electric power
purchase aimed at, in the same way, to implement conditions of
competitiveness in the market.
In this evolutionary process in order to promote competition, that
Law also assured the suppliers and the respective consumers free access to
The Free Consumers in the Brazilian Electrical Energy Sector 17
André Pepitone da Nóbrega
the power distribution and transmission systems of the public utility
concessionaire and permit-holder through reimbursement of the transmission
cost involved, calculated on the basis of the criteria established by the Grantor
Authority.
Until then, the structure of transport tariffs was billed under a
supply tariff, which incorporated the wires services and the power service. In
the direction of the establishment of an energy market, it became necessary to
identify the portion of the supply tariff that represents the cost of the transport
net, as well as the one that represents the cost of the energy.
3.2. Federal Law n. 9,427 - December 26, 1996
This law created the Brazilian Electricity Regulatory Agency –
ANEEL, the Regulator for the Electricity Sector, with operational and financial
autonomy, and the legal power to regulate and focalize the electric energy
production, transmission, distribution and commercialization according to the
policies and directives established by the Federal Government, and to carry out
public utilities tendering for the hiring of public utility concessionaires for electric
energy production, transmission and distribution, as well as the granting of
concessions for the use of hydraulic potentials;
This Law introduced competition in the generation and supply
sectors considering the singular character of the Brazilian hydraulic generating
park. The introduction of the competition was implemented progressively,
without harming the operation of the system and the destabilizionof the prices of
energy.
3.3. Federal Law n. 9,648 - May 28, 1998
This Law alters some dispositions of Law n. 9,074 in what refers to
the free consumers. It establishes that starting 1998, the Free Consumers will
be able to have the option to purchase energy from any distribution company,
generation or energy trader.
The Free Consumers in the Brazilian Electrical Energy Sector 18
André Pepitone da Nóbrega
This Law also allows that the exercise of the option by the
consumer may not result in any increase in rates for the remaining consumers
of the public power services concessionaire whose market share has shrunk.
It permits the Distribution Concessionaires negotiate new power
supply conditions with the Free Consumers. Such disposition will be altered
hereafter when the new framework for the Brazilian Electricity Sector implanted
by President Lula's government enters in practice.
This Law also create a new niche for the Electricity Market in the
country. When giving new composition to § 5 of the art. 26 of the Law n. 9,427,
it permits that Small Consumers, usually small business, with an installed load
of 500 kW or more (In this paper we will qualify these consumers as “Special
Consumers”), buy electric power from wind, small hydroelectric plants, biomass
or solar sources with an installed power of up to 30 MW.
This Law ensured the free access to the transport networks, which
establishes the compulsory requirement that authorization to transmit blocks of
energy traded by the Agents be subject to the payment of due charges for the
use of the electricity network.
This Law creates the Wholesale Electricity Market – MAE, with the
function of intermediating all electricity sale and purchase transactions in each
of the interconnected electricity systems. In 2005, with the implementation of
the new framework for the Brazilian Electricity Sector, this Institution was
happened by the Electric Energy Trade Chamber – CCEE, that possesses the
same institutional paper.
This Law, which, among other things, also created the National
System Operator (Operador Nacional do Sistema - ONS), and authorised the
comercialization of Electric Energy by traders.
3.4. Federal Law n. 10,848 - March 15, 2004
This Law introduced the new regulatory framework for the
Electricity Sector in Brazil after changes in Government in the year of 2003. It
The Free Consumers in the Brazilian Electrical Energy Sector 19
André Pepitone da Nóbrega
created two separate environments for electricity agents to carry out electricity
purchase and sale transactions: The Regulated Contracting Environment –
ACR and the Free Contracting Environment – ACL.
In the ACL, all electricity agent, except the distributors, would be
allowed to freely negotiate power purchase agreements - PPAs. In the ACR,
the distribution concessionaries would purchase, at public auctions, the totality
of the electricity that they have to acquire in order to meet the needs of the
consumers.
The modifications in Law n. 9,074 brought by this Law, in what
refers to Free Consumer, are as follows:
1 - The Free Consumer must inform its load requirement to the
Federal Government and shall contract the totality of such load, subject to
penalties in case of forecast deviation.
2 - Consumers that have not entered into definite term
agreements with their Distribution Concessionaire may start acquiring electricity
from another supplier starting in the year following that in which they give the
Distribution concessionary notice of their intention to change suppliers. Return
to the regulated condition must be requested with an advance of at least 5
years. The prior notice for Free Consumer status was exceptionally reduced to
only 180 days for Consumers that intend to develop self-generation facilities.
This exception will be valid until December 31, 2009.
It seals the possibility of the distribution concessionaries negotiate
energy supply conditions distinct of those practiced in his captive market with
the Free Consumers. Now, the Distributors will be able to attend Free
Consumer only in the case that the consumers units are located in the area of
concession of the Distribution Company and under the same conditions of price
applicable to the Captive Consumers.
The Free Consumers in the Brazilian Electrical Energy Sector 20
André Pepitone da Nóbrega
This Law created the Electric Energy Commercialization Chamber
– CCEE, the successor of the Electric Energy Wholesale Market – MAE. CCEE
is responsible for managing the power commercialization in the ACR and ACL
environments. CCEE is incorporated as a private legal entity subject to
ANEEL’s authorization, regulation and supervision. Concessionaires,
permissionaires and authorization holders within the electric industry as well as
free consumers shall participate of CCEE. The members of CCEE shall
provide funding for its operation. Such cost shall not be passed through to the
consumers’ tariffs and therefore will be entirely borne by the Agents. CCEEs
charter shall be published by ANEEL and shall include arbitration as the
applicable dispute resolution mechanism.
The Free Consumers in the Brazilian Electrical Energy Sector 21
André Pepitone da Nóbrega
SECTION FOUR
4. RETAIL COMPETITION OR CONSUMER CHOICE
Hunt and Shuttleworth (1996) described the “classical” retail
competition model as the possibility available to end consumers who, having
reached the voltage level of residential consumers, can choose the electricity
supply company of their choice freely. In this case, generation and retailing are
fully separated of the transportation business (natural monopoly6), whether in
high voltage - transmission or in low voltage - distribution. This separation is
important to ensure free access to transmission and distribution networks.
Therefore, the distribution activity is limited to wires and serving captive
consumers. In this model, competition has been introduced into all levels of the
industry, ideally from wholesaling down to individual domestic consumers.
In retail competition, a distinction is made between the revenue
from using wires and the one from power service. Consumers can buy
electricity from any agent in the market which is authorized the sell it. Electricity
transmission and distribution companies, when providing wire services to any
interested party, are refunded for the transportation cost involved. Therefore,
rules for open access to wires need to be established. The reason for such
separation is that the wire service will remain a monopolized activity, whereas
the sales segment is open to competition.
Created Electricity Retailers whose business is buying and selling
electricity (electrons) under longer term (hedged) contracts and spot contracts.
These new agents are important for disseminating the competition. They don’t
need to own any asset, whether for generation or transportation purposes.
6 In the literature, Natural Monopoly is a market failure that has led to public production arises when markets are not competitive. A common reason that markets may not be competitive is the existence of increasing returns to scale; that is, the average costs of production decline as the level of production increases. In that case, economic efficiency requires that there be a limited number of firms. Industries where increasing returns are so significant that only one firm should operate in any region are referred to as natural monopolies. See Joseph Stiglitz, Economics of the Public Sector (New York: W.W. Norton, 1988).
The Free Consumers in the Brazilian Electrical Energy Sector 22
André Pepitone da Nóbrega
Apart from this, electricity generating companies and retailers agents should be
able to enter and leave the market freely, so that as to bring it as close as
possible to a competitive market.
Figure 7 - Retail competition model
The requirements for a market operator role is to meet the needs
of the system from a commercial point of view by keeping track of differences
between contracted and metered consumption.
Separating technical and commercial activities has become
increasingly important. The responsibility for installing metering systems and
establishing standards their respective standards the flow of information
between generation and load should be clearly defined between the owners of
generation, transmission, and distribution facilities and the market operator.
The Free Consumers in the Brazilian Electrical Energy Sector 23
André Pepitone da Nóbrega
In the retail competition model, transaction costs rise as more
trade relations are established amongst the different agents [Paul Joskow
2005]. This will probably translate into advantages to large consumers, since
their scale for negotiating electricity is larger.
For small consumers, the alternative available may be that of
setting up an organization to facilitate electricity purchase and sale negotiations
or else continue to be captive consumers of the distributing company.
The main differences between the retail and wholesale
competition models are the following ones:
First, in the retail competition model, all consumers have the
prerogative of choosing their own supplier, while in the wholesale competition
model only distribution companies have this right.
Second, selling in the retail market is a marketing role which does
not require that agents acting as retailers physically own distribution or
transmission facilities.
Third, in the wholesale competition model, only generation,
distribution and retailers companies have free access to transmission and
distribution networks, while in the retail competition model consumers also
enjoy this free access.
The decision to implement a retail competition model in the
Brazilian consumer market was made at the Federal Level. The free choice
process was gradually introduced, initially for large industrial consumers and,
progressively, to medium-sized consumers. The ultimate objective, as signaled
in the Law n. 9,074 of 1995, was to open the competition for residential
consumers, when full competition in the retail market would be implemented.
This stage should have been reached in the Brazilian market by 2005.
However, due to the strong resistance from electricity distribution companies,
The Free Consumers in the Brazilian Electrical Energy Sector 24
André Pepitone da Nóbrega
the process was postponed. Notwithstanding, social pressures have increased
and become more scattered for regulations to be approved ensuring more
freedom to consumers.
1995 2000 ????
Figure 8 – Opening of the Brazilian retai l market
? Creation of the retail market
Large consumer (Load > 10 MW)
? Liberation of the retail market for:
Medium -sized consumer (Load > 3 MW)
? Total Liberation of the retail market.
Residential consumers can choose its provider
PHASE 2 PHASE 1 PHASE 3
The Free Consumers in the Brazilian Electrical Energy Sector 25
André Pepitone da Nóbrega
SECTION FIVE 5. FREE CONSUMERS IN THE BRAZILIAN MARKET
Currently, there are two types of E lectricity Consumers in Brazil:
“Free” Consumers, who have the right to choose their electricity supplier paying
a rate for using the distribution or transmission system; and “Captive”
Consumers, who are supplied by the distribution company operating in its
concession area, having their rates regulated by ANEEL.
The right to become a Free Consumer was provided for in Law n.
9,074, enacted in 1995, which put an end to exclusive rights to supply electricity
by Distribution Concessionaires within their respective concession areas. The
Law established that the market should be gradually liberalized over a five-year
period to allow Large Consumers to become Free Consumers. Between July
1995 and July 2000, this possibility was restricted to Large Consumers with an
installed load of 10 MW or more served by a voltage of 69 kV or more.
From July 2000 to-date, competition was made available to
Consumers connected before July 8, 1995 with a load in excess of 3 MW and
facilities connected to the electricity grid with a voltage of 69 kV or greater and
consumers connected after July 8, 1995 with a load above 3 MW and served
with any voltage.
Table 2 – Criteria to be Free Consumers
Consumption Load Voltage
Connected before 08/07/1995 > 3 MW > 69 kV
New > 3 MW Serviced at any voltage
The Law also stated that after eight years (starting 2003) the
Ministry of Mines and Energy could expand this market even more, reducing the
initial load and voltage limits.
The Free Consumers in the Brazilian Electrical Energy Sector 26
André Pepitone da Nóbrega
It should be observed that consuming units are not compulsorily
required to become eligible, as this is a right that they can exercise or not.
Therefore, if a consuming unit meets one the requirements shown in the table
above, it is potentially a Free Consumer and from now on we will refer to it as a
“potentially Free Consumer.”
If a Free Consumer wants to return to the condition of a Regulated
Consumer, it must notify the Distributing Company of its concession area 5
years in advance, a deadline that can be reduced at the discretion of the
Distributing Company.
Consumers in the free environment must enter into bilateral
contracts with one or more suppliers for all their load and they are subject to
heavy penalties if they don't.
Free Consumers can buy electricity from the local Distributing
Company only under the same regulated conditions applicable to the other
Captive Consumers, including in terms of rates and deadlines, making it
unfeasible for distributing companies to compete to win or maintain this type of
consumer.
As a means to foster the implementation of renewable electricity
sources in Brazil, small consumers, usually small business, with an installed
load of 500 kW or more were allowed to buy electricity from wind, small
hydroelectric plants, biomass or solar sources with an installed power of up to
30 MW. Such contracting environment is full of exceptions, special treatments
and commercial restrictions and its market is limited because the offer from
renewable sources capable of meeting the needs of these consumers is still
small.
Table 3 – Special Kind of C onsumers
Consumption Load Voltage
Who buy electricity from wind, small hydroelectric plants, biomass or solar sources with an installed power of up to 30 MW.
> 0,5 MW Serviced at any voltage
The Free Consumers in the Brazilian Electrical Energy Sector 27
André Pepitone da Nóbrega
5.1. Barriers that consumers face to get into Retail Competition
In Brazil, most trade relations between electricity consumers and
distributing companies consisted in vague, not very detailed, and often very old
contracts, based on automatic renewal clauses, since there was no market
environment, but mere formal procedures between the parties.
With the establishment of a competitive model for electricity, only
in 2000 a rule was issued setting out general supply conditions which
constitutes the main benchmark for regulated commercial practices between
Electricity Consumers and Distribution Concessionaires.
Experience has shown that there are contract modalities which
include clauses precluding any contract rescission or fixing amounts to be paid
for rescinding a contract which have nothing to do with the actual value of the
commercial operation, making any rescission unfeasible for all practical
purposes.
There are also cases of rescission clauses which can only be
applied in the event of bankruptcy or if consumers discontinue their operations.
In this scenario, the existence of effective contracts between
Distributing Companies and Large Consumers ends up making any migration
attempts and the existence of a truly Free Market more difficult, as Consumers
must abide by their contracts with Monopoly Companies until the end before
they can migrate to the competitive environment.
In an attempt to soften this entry barrier, Law n. 10,848, enacted
in 2004, established new rules allowing captive consumers who have contracts
with distribution companies without a final date to migrate to the free
environment.
The Law determined that once a consumer expresses the
intention to migrate to that environment, such migration would be possible
The Free Consumers in the Brazilian Electrical Energy Sector 28
André Pepitone da Nóbrega
within a maximum period of 36 months and that specific regulations would
regulate this matter. Those specific regulations, which were issued four months
later, determined that the deadline in these cases would be one year after a
formal notification from the consumer to the distribution agent.
Another factor that has been hindering the migration of consumers
to the free market is access to low voltage (Distribution) wire. Although the law
provides for the right to access transmission and distribution systems on a free
and non-discriminatory basis, this right is still not applicable in practice. The
owners of network assets resort to anticompetitive practices and impose many
difficulties to allow access to them. The regulator could avoid this attitude by
adopting tougher measures to curb abuses.
Another recurrent problem is the metering system for charging
consumers who opt for the free market.
When they migrate to the free market, consumers must install or
adjust the metering system according to the technical specifications set by the
system and the market operator.
However, because of technical limitations, such as the non-
availability of meters in the market which meet the specifications established by
the system and the market operator, and due to regulatory distortions which
must be corrected, such as requiring medium-sized consumer to have the same
metering equipment that a large-sized industrial consumer is required to have,
the former is excessively and unnecessarily burdened.
The points made above constitute hurdles which have been
jeopardizing the consolidation of the free market to a certain extent. The need to
improve the regulation to encourage the entry of non-franchise consumers to
the system is undeniable.
5.2. Forces Pushing Consumers toward Retail Competition
The Brazilian industrial consuming units (which incidentally are the
consumers that may migrate to the free market) were paying electricity supply
The Free Consumers in the Brazilian Electrical Energy Sector 29
André Pepitone da Nóbrega
rates which had been subsidized for at least 20 years. Residential, commercial,
rural and other consumers pay proportionally higher electricity rates in relation
to industrial consumers. This rate distortion has the effect of a crossed subsidy,
through which certain classes of consumers pay more while industrial
consumers pay less.
Since 2003, the Federal Administration began to apply a rate
realignment process to annual rate adjustments for the purpose of putting an
end to the subsidy which makes the rates paid by residential, commercial, rural
and other consumers higher. This is a gradual process that will be completed in
2007. Until then, the rates charged from industrial consumers will be subject to
higher adjustments than those paid by residential consumers.
The rate realignment process will be based on adjustment levels
applied to rates for a period of 5 years. In 2003, a 10% realignment percentage
was applied; in 2004, the percentage was 25%; in 2005, it was 50%; in 2006,
the percentage will be 75% and, finally, in 2007 all the supply rates will have a
realignment of 100%, meaning that they will have been aligned to the actual
costs of the service.
A study carried out by ANEEL7 shows that the electricity price
charged from residential consumers would decrease by 12.38% in average and
the one charged from industrial consumers would increase by up to 41.12%
during the rate realignment process.
This means that if no other variable were involved in the rate
correction procedure and the realignment process were applied all at once, the
rate for residential consumers would drop by 12.38% and the one for industrial
consumers would rise by 41.12%.
Another factor encouraging consumers to migrate to the free
market is a contribution called Extraordinary Tariff-rate Recomposition – RTE,
which was established to make up for revenue losses experienced by 7 Source: Nota Técnica n. 083/2003-SRE/SRD/ANEEL of april 23, 2003
The Free Consumers in the Brazilian Electrical Energy Sector 30
André Pepitone da Nóbrega
generating and distributing companies as a result of the electricity rationing
program adopted in Brazil in 2001 and 2002.
According to the Law, captive consumers pay 2.9% (residential,
rural consumers) and 7.9% (industrial and commercial consumers) over the
electricity price, while non-franchise consumers are not subject to this
contribution.
The deadline for ending the collection of the RTE is December
2007 (72 months after it began to be collected, in December 2001).
Another factor which motivates potentially non-franchise
consumers to opt for the free market and stop paying the regulated rate captive
consumers pay is the fact that the mix of electricity purchase contracts adopted
by certain distributing companies in Brazil, which is made up of different MWh
costs, has increased considerably, as a result of which the average electricity
purchase rate of distributing companies has become higher than the marginal
cost of new electricity sources available to these consumers. This is due to two
factors.
The first one is a compulsory requirement imposed on some
distributing companies to buy a certain amount of electricity from the Itaipu
power plant, the electricity of which is very expensive as compared to other
competitive sources available on the market.
Besides the requirement to buy electricity from Itaipu, some
distributing companies of Brazil, mainly in the northeast region, signed a long-
term (30 years in average) electricity purchase contract with natural gas thermal
generating companies under the Thermoelectric Priority Plan - PPT8.
8 The Brazilian government has acknowledged that it is strategically important for the country to increase thermoelectric generation and consequently be less dependent on hydro power. With that in mind the federal government launched in 2000 the Thermoelectric Priority Program – PPT “Programa Prioritário de Termeletricidade”, by Federal Decree n. 3,371, enacted in 2000, which originally planned the construction of 47 thermoelectric plants using natural gas imported from Bolivia, totaling 17,500 MW more capacity before December 2003. During 2001 and the beginning of 2002 the plan was rearranged to 40 plants and 13,637 MW, to be installed before December 2004.
The Free Consumers in the Brazilian Electrical Energy Sector 31
André Pepitone da Nóbrega
In a particularly extreme case, a distributing company replaced
60% of its supply mix by replacing hydraulic electricity from already amortized
plants bought at low prices with electricity generated by new natural gas thermal
plants of a generating company linked to its economic group at a much higher
cost.
5.3. Advantages and Risks
This gradual liberalization of the electricity market in Brazil affords
various opportunities to consumer. The expectations for the police are that
several advantages both in terms of price and of the quality of the additional
products and services provided by generating and marketing companies.
Industrial companies are realizing that operating in the free
environment ensures them a gain that should not be despised, as apart for
ensuring electricity purchase contracts at more competitive prices, leading to
significant savings in relation to the captive rate and contributing to enhance
their competitiveness, the contracted sums can be better adjusted to the profile
of daily, monthly, and annual use of electricity by consumers.
Another aspect that should be highlighted is the possibility
available to consumers to link the annual adjustment rate of their electricity
purchase contract to a rate that represents their actual production costs. Such
mechanism is not possible in the captive market, where ANEEL defines the
adjustment rate that each distribution concessionaire is to apply to electricity
sold in the regulated market.
As an example, the chart below shows that the adjustment rate
adopted by distribuction companies is much higher than the one adopted in the
free market. In almost all bilateral contracts, the IGP-M (General Market Price
Index) is adopted as the adjustment index.
The Free Consumers in the Brazilian Electrical Energy Sector 32
André Pepitone da Nóbrega
Figure 9 - Adjustment rate adopted by distribuction companies x IGP-M index Source: CBIEE – Câmara Brasileira de Investidores em energia elétrica.
In the retail market, changing suppliers does not change in any
way how consumers receive the electricity to be consumed. For the consumer,
this change is merely contractual.
It is also a known fact that competition entails risks. We know
today that market risks for a consumer comprise a broad range of specific
features and that no proper mechanisms are available for quantifying most
marketing risks.
However, the large amount of diverse information required for
managing market risks is efficiently manipulated by retailers, which rely on
highly skilled experts in their staff to deal with systemic aspects.
Retailers have been operating in the market as brokers seeking to
bring together buyers and vendors who enter into contracts amongst them or as
traders, who buy electricity from those who sell it and pass it on to their own
clients, the consumers.
Consumers know their needs, but they are not aware of the
technical limits imposed on generating companies. Retailers are familiar with
the implicit risks of energy planning in its different horizons, given their direct
impact on spot market pricing.
The Free Consumers in the Brazilian Electrical Energy Sector 33
André Pepitone da Nóbrega
The greatest risk for free consumers is the cost of electricity, the
possibility that prices might go up in a way they did not anticipate.
5.4. Adhesion to retail competition
Free consumers constitute one of the most visible faces of
competition in the electricity industry. By introducing them, Law n. 9,074,
enacted in 1995, enabled these consumers to respond to economic signals
which are necessary not only to induce efficient investments in the long run, but
also to make possible a more rational use of resources in the sector.
The retail marketing of electricity in Brazil is a relatively recent
phenomenon and it only began to crawl in November 1999, four years after the
law that created this consumer was passed.
In July 2000, when consumers were only allowed to migrate to the
free market if their demand exceeded 10 MW, only five consumers acted as
players in the free market, totaling a load of 150 average MWs, a figure that
was still very incipient and accounted for 0.51% of the electricity consumption of
the national system. It should be highlighted that these five consumers were
physically located in the Southeast/Centro-west sub-market, Brazil's most
developed region.
In July 2000, in a second stage, the law expanded the universe of
the Brazilian retail market, lowering the demand level to be met by consumers
to 3,000 KW. However, late in 2001 the situation was practically the same, as
there were only nine consumers in the free market.
The first 1,000 average MWs traded in the free market were only
achieved in September 2002, while the second 1,000 MWs were achieved in
November of the same year. Since then, the participation of consumers in the
retail market has grown sharply.
The Free Consumers in the Brazilian Electrical Energy Sector 34
André Pepitone da Nóbrega
0
250
500
750
1000
1250
1500
1750
2000
2250
2500
Jan-
02
Feb-
02
Mar
-02
Apr
-02
May
-02
Jun-
02
Jul-0
2
Aug
-02
Sep
-02
Oct
-02
Nov
-02
Dec
-02
Figure 10 Evolution of the consumption in the retail mark in 2002 ( average MWs) Source: ANEEL
In 2004, the free market continued to grow at a fairly high rate,
closing the year with 340 consumers, representing 5,640 average MWs. This if
due to the perception of executives of medium-sized industrial corporations,
who were not aware of the gains they could secure by saving on electricity bills.
When it became clear that electricity marketing contributed to enhance
competitiveness on a large scale, these companies migrated to the free market.
Figure 11 Evolution of the consumption in the retail market. Source: ANEEL
0.00
2,000.00
4,000.00
6,000.00
8,000.00
10,000.00
January 193.90 2,623.70 3,462.71 7,962.96
December 2,162.98 3,033.29 5,641.25 9,488.92
2002 2003 2004 2005
Average
MWs
Average
MWs
*
* June
The Free Consumers in the Brazilian Electrical Energy Sector 35
André Pepitone da Nóbrega
Figure 12 Composition of the energy market in 2004 Source: ANEEL
The greatest boom registered in this market was in 2005, when a
marked increase in free consumers in the retail market in Brazil was registered
in the first semester, from 491 to 607 The consumption of this category of
consumers in average MWs increased from 7,960 to 9,500 during that period.
Consumer s Average MWs
0
100
200
300
400
500
600
700
Sep
-00
Dec
-00
Mar
-01
Jun-
01
Sep
-01
Dec
-01
Mar
-02
Jun-
02
Sep
-02
Dec
-02
Mar
-03
Jun-
03
Sep
-03
Dec
-03
Mar
-04
Jun-
04
Sep
-04
Dec
-04
Mar
-05
Jun-
05
-
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
Number of Customers
Volume of Energy (Average MWs)
Figure 13 - Evolution of the Free Consumers' Market Source: ANEEL
Free Customers
14%
Captive Customers
86%
The Free Consumers in the Brazilian Electrical Energy Sector 36
André Pepitone da Nóbrega
Studies show that, in its largest dimensions, the free electricity
market could hit the mark of 35% of the electricity consumed in Brazil,
something in the area of 14,500 average MWs.
It is interesting to observe that the price reduction benefit derived
from competition in the retail market, given the new commercial strategies
adopted by corporations to win consumers, accounted for savings in the order
of 20-25% for consumers who opted for this market.
The Free Consumers in the Brazilian Electrical Energy Sector 37
André Pepitone da Nóbrega
SECTION SIX 6. CONSIDERATIONS
In countries where the introduction of competition in the consumer
segment was successful, electricity trading in the retail market led to reductions
in the electricity price for captive customers. In Brazil, this situation cannot be
observed yet because of the existence of crossed subsidies. On the other hand,
however, the ones who benefited most from more competitive electricity prices
were the customers who migrated to the free market.
The economic signal that should be issued to consumers is that
the incentive for them to become free customers should be the perspective of
better prices for purchasing electricity and not their release from financial
burdens.
The free market brings opportunities, but it also entails risks and
customers should know how to take advantage of opportunities as much as
possible, so as to minimize their risks.
More than a decade after a free market was created in Brazil, it
can be seen that adhesion to it is growing exponentially. In its early stages,
customers were rather hesitant to enter this market because, among other
reasons, they felt that they were venturing into unknown territory.
Competition in the segment of medium and small customers is
limited. The timeline for liberalizing all the market has not been defined yet. The
segment of medium-sized and small residential and corporate customers
accounts for a fairly high share of the market and postponing this liberalization
can hinder competition.
However, the benefits of extending retail competition to small
customers such as residential users remains subject to debate (Joskow, 2003).
The Free Consumers in the Brazilian Electrical Energy Sector 38
André Pepitone da Nóbrega
For most products, to suggest consumers would be better off served by a
regulated monopoly than by a competitive market would be a heresy, but for
electricity, experience in Britain with small consumers suggests that this would
indeed be the case (Steve Thomas).
As Steve Thomas said, the main reasons that retail electricity
competition is bad for small consumers is that competition is not a ‘free good’.
Introducing competition imposes a range of additional costs that must be paid
by consumers and these costs are very high and it is far from clear that the
benefits will outweigh them. Retail electricity competition will result in a transfer
of costs from large to small consumers because large consumers have the
incentive, negotiating skill and resources to get the best deal from the market.
The Brazilian Government should analyze very carefully this issue
before introduce the small consumers in the electricity retail competition.
Organizing an electricity industry with competition in the retail
market is advantageous for industrial consumers, as it affords them more
options in terms of electricity supply and risk management mechanisms.
However, this organization requires the presence of an
independent regulatory agency capable of ensuring the necessary conditions
for the existence of a competitive market by, for example, monitoring market
power practices and non-authorized cost transfers.
With the consolidation of the retail market in the country, a
diversification in the activities of large customers can be observed as they take
responsibility for managing electricity as a new input in their production chain.
This management implies the development of new training courses and then
the establishment of teams devoted to this new activity and the practice of
continuously monitoring market conditions to take advantage of opportunities.
The main consequence of market liberalization for free customers
in Brazil includes, on the one hand, a new freedom to choose their own supplier
The Free Consumers in the Brazilian Electrical Energy Sector 39
André Pepitone da Nóbrega
and conditions for their electricity supply and, on the other hand, the impact of
competition on prices.
The freedom for customers to select the supplier of their choice
allowed them to optimize their electricity purchase with greater flexibility and
balance amongst energy inputs, etc. As for the improvements observed in
services, they became a factor of attraction for new customers.
We can also mention that a stronger competition amongst free
customers ensures a market for new generation undertakings.
The Free Consumers in the Brazilian Electrical Energy Sector 40
André Pepitone da Nóbrega
SECTION SEVEN 7. REFERENCES
1 - ALMEIDA, E. and PINTO JR, H.Q. (2005). “Reform in Brazilian electricity
industry: the sector for a new model”. International Journal of Global
Energy Issues, Volume 23, Issue 4. 2005.
2 - BOHI, D., and K. PALMER (1996). “The Efficiency of Wholesale vs. Retail
Competition in Electricity”. The Electricity Journal, Octuber 1996.
3 - DI PIETRO, MARIA S. Z. (2003). “Direito Regulatório – Temas Polêmicos”.
Belo Horizonte, Editora Fórum, 2003.
4 - HUNT, S. and G SHUTTLEWORTH. (1996). “Competition and Choice in
Electricity”. Chichester, U.K., John Wiley and Sons.
5 - JOSKOW, PAUL (2000) “Why do we need electricity retailers? You can get
it cheaper wholesale”, Department of Economics, Massachusetts Institute
of Technology. Revised Discussion Draft, February 2000.
6 - JOSKOW, PAUL (2000) “Deregulation and regulatory reform in the US
electric power sector”, in Sam Peltzman and Clifford Winston (eds)
Deregulation of NetworkIndustries; What’s Next, Washington DC: AEI-
Brookings Joint Centre for Regulatory Studies, pp. 113-188.
7 - JOSKOW, PAUL (2005) “The difficult transition to competitive electricity
markets in the United States”, in Griffin and Puller (2005) pp. 31-97.
8 - JOSKOW, PAUL L. and TIROLE, JEAN. (2005). “Retail Electricity
Competition”. Department of Economics, Massachusetts Institute of
Technology. Revised Discussion Draft, April 2005.
The Free Consumers in the Brazilian Electrical Energy Sector 41
André Pepitone da Nóbrega
9 - JOSKOW, PAUL (2006). “Electricity sector liberalization: lessons learned
from crosscountrystudies”, in Sioshanshi and Pfaffenburger (2006).
10 - KAHN, ALFRED E. (1999). “Bribing Consumers to Leave and Calling It
Competition”. The Electricity Journal, pp. 99-90, May 1999.
11 - LITTLECHILD, STEPHEN C (2001). “Retail competition – the benefits
must not be underestimated”. Power UK, 89,July, pp. 17-25, and “Reply to
Graham Shuttleworth”, Power UK, 91, September, pp.44-5.
12 - LITTLECHILD, STEPHEN C (2002). “Competition in Retail Electricity
Supply”, Journal des Economistes et des Etudes Humaines , 12 (2/3),
July/September, 353-376.
13 - LOCK, REINIER (2005). “The New Electricity Model in Brazil: An
Institutional Framework in Transition”. The Electricity Journal, Volume 18,
Issue 1. 2005.
14 - MELLO, JOÃO CARLOS DE OLIVEIRA et all (2003). “Estruturas de
Mercado de Energia Elétrica no Mundo”, report made by Andre&Canelas
Consultoria e Engenharia to ABRACE-ABICLOR-IBS-ABAL in 2003.
15 - ROSA, LUIZ PINGUELLI and TOLMASQUIM, MAURÍCIO (1998). “A
Reforma do Setor Elétrico no Brasil e no Mundo: Uma Visão Crítica”, Rio
de Janeiro: Relume Dumará: COPPE, UFRJ, 1998.
16 - SALIES, E. AND C. WADDAMS PRICE (2004). “Charges, Costs, and
Market Power: The Deregulated UK Electricity Retail Market”, The Energy
Journal 25(3), 19-37.
17 - STIGLITZ, JOSEPH E. (1988). “Economics of the public sector”, New
York: W.W. Norton, 1988.
The Free Consumers in the Brazilian Electrical Energy Sector 42
André Pepitone da Nóbrega
18 - THOMAS, STEVE (2002). “Why retail electricity competition is bad for
small consumers: British experience”. Presentation to the international
conference Restoring Just and Reasonable Electricity Rates. Washington
DC: 28-29 September 2002.